cannot log in

hello, afterbeing in "root" i clicked the restart option ubuntu (11.04) ubuntu logs off the main screen but then hangs on the screen with ubuntu with dots underneath. The only way i could get out was to switch the power on & off to the laptop. I now cannot get past the ubuntu log in screen. It will ask for my password, when I type it in it will give me a blank screen for a mo as if to log in, then return to the log in screen. This happens for my profile and root. Can any one assit please. Any assistance greatly appreciated.

On 17/08/2011 16:01, actionparsnip wrote:
> Your question #168260 on thunderbird in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/168260
>
> Status: Open => Needs information
>
> actionparsnip requested more information:
> what if you login as a different user that isn't you or root (You should
> NOT log in as root, it is not supported or necessary).
>

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